MPEC 2008-Q03 : 2007 YO56
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M.P.E.C. 2008-Q03 Issued 2008 Aug. 18, 01:10 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Commission 20 of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://www.cfa.harvard.edu/iau/mpc.html ISSN 1523-6714
2007 YO56
Revision to MPEC 2008-A09
Additional Observations:
K07Y56O C2008 08 16.07547 13 59 41.69 +47 05 23.8 20.2 V EQ003H55
K07Y56O C2008 08 16.07889 13 59 44.17 +47 05 41.9 19.9 V EQ003H55
K07Y56O C2008 08 16.08292 13 59 47.17 +47 06 04.3 19.9 V EQ003H55
K07Y56O C2008 08 17.08245 14 12 24.62 +48 33 22.5 19.5 V EQ003H55
K07Y56O C2008 08 17.08734 14 12 28.15 +48 33 47.0 19.8 V EQ003H55
K07Y56O C2008 08 17.09319 14 12 32.53 +48 34 15.8 19.9 V EQ003H55
K07Y56O C2008 08 17.10272 14 12 39.78 +48 35 02.2 20.1 V EQ003H55
Observer details:
H55 Astronomical Research Observatory, Charleston. Observer R. Holmes.
Measurer H. Devore. 0.61-m f/4.0 astrograph + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
080816 H55 40.4+ 9.9- 080817 H55 40.3+ 10.8- MPO136010 -0.0050 day
Orbital elements:
2007 YO56 Earth MOID = 0.1466 AU
Epoch 2008 May 14.0 TT = JDT 2454600.5 MPC
M 325.02716 (2000.0) P Q
n 0.68028658 Peri. 333.29627 -0.13991993 +0.95640428
a 1.2803876 Node 287.74552 -0.85354198 -0.24772710
e 0.3571644 Incl. 15.61383 -0.50188495 +0.15466784
P 1.45 H 20.1 G 0.15 U 4
Residuals in seconds of arc
071230 691 0.1+ 0.1- 071231 291 0.5- 0.2+ 080118 291 0.3- 0.1-
071230 691 0.1+ 0.1- 080101 291 0.1+ 0.3+ 080128 H55 0.2- 0.2-
071230 691 0.3- 1.1- 080101 291 0.0 0.3+ 080128 H55 0.2+ 0.7-
071230 291 0.4- 0.1- 080101 291 0.3- 0.0 080201 291 0.0 0.1-
071230 291 0.0 0.0 080103 H55 0.8+ 0.1+ 080201 291 0.7+ 0.7+
071230 291 0.3+ 0.5+ 080103 H55 0.5+ 0.2- 080201 291 0.0 0.2+
071230 G96 1.0+ 0.6- 080110 291 0.4+ 0.7+ 080224 H55 1.2- 0.1+
071230 G96 1.2+ 0.3- 080110 291 0.4+ 0.5- 080224 H55 0.1- 0.8+
071230 G96 1.5+ 0.7+ 080110 291 0.0 0.2- 080224 H55 0.2- 1.3-
071230 G96 1.3+ 0.3- 080111 291 0.0 0.0 080816 H55 0.1- 0.6-
071230 G96 0.6+ 0.1+ 080111 291 0.6- 1.1- 080816 H55 0.2- 0.6-
071230 G96 0.1- 0.1- 080116 291 0.5- 0.4- 080816 H55 0.3+ 0.5+
071230 G96 0.2+ 0.5- 080116 291 0.1+ 0.6+ 080817 H55 1.5+ 0.4-
071230 G96 0.6+ 0.3+ 080116 291 0.3- 0.5+ 080817 H55 0.2- 0.2+
071231 291 0.4- 0.5+ 080118 291 0.2+ 0.1- 080817 H55 0.7- 0.5+
071231 291 0.1- 0.2+ 080118 291 0.2- 0.2- 080817 H55 0.5- 0.4+
Ephemeris:
2007 YO56 a,e,i = 1.28, 0.36, 16 q = 0.8231
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2008 08 12 13 13.17 +40 12.5 0.170 0.926 54.9 116.5 20.7
2008 08 22 15 19.48 +53 58.6 0.182 0.976 73.8 95.9 19.8
2008 09 01 17 31.23 +56 27.5 0.216 1.032 89.9 78.1 19.6
2008 09 11 19 00.48 +52 48.4 0.261 1.089 101.4 65.0 19.7
2008 09 21 19 56.32 +47 39.8 0.313 1.147 109.6 55.6 19.9
2008 10 01 20 35.48 +42 27.6 0.369 1.205 115.0 48.9 20.2
2008 10 11 21 06.72 +37 38.0 0.433 1.261 118.0 44.4 20.5
2008 10 21 21 33.93 +33 22.4 0.503 1.315 118.9 41.5 20.8
2008 10 31 21 58.98 +29 45.3 0.583 1.366 117.9 40.0 21.2
2008 11 10 22 22.86 +26 49.3 0.671 1.415 115.4 39.2 21.5
2008 11 20 22 45.98 +24 33.2 0.767 1.460 112.0 38.9 21.9
Gareth V. Williams (C) Copyright 2008 MPC M.P.E.C. 2008-Q03
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